hesperium

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English[edit]

English Wikipedia has an article on:
Wikipedia

Alternative forms[edit]

Etymology[edit]

From Italian Esperio after a Greek name of Italy + -ium, Ancient Greek Ἑσπερία (Hespería, “land of the west”).

Noun[edit]

hesperium (uncountable)

  1. (obsolete) A rejected name for plutonium. (Esperium chemical symbol: Es)
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